Question

What is the correct Lewis dot structure for ${\mathrm{BeF}}_2$ molecule?

Answer 1

Lewis dot structure

• A Lewis Structure is a very simplified representation of the valence shell electrons in a molecule. Electrons are shown as "dots" or for bonding electrons as a line between the two atoms.
• The goal is to obtain the "best" electron configuration, i.e. the octet rule and formal charges need to be satisfied.

Example

• The Lewis dot structure of ${\mathrm{BeF}}_2$ is as follows:

• Beryllium is bonded with two fluorine atoms by single bonds.
• Lone pairs of electrons are present on both fluorine atoms and the structure is linear.